Improvement in shingle-machines



MFETERS. PHOTO-UTHOGHAPNER. WASHINGTON. D. C,

' diluted tattt gama @pitre CARL NORDELL, 0F NEW YORK, N. Y.

Letters Patent N o. 107 ,092, dated September 6, 1870.

lIIVI,PROVEli/.IIIEINTIP IN SHING-LE-MACHINES.

The Schedule referred to in these Letters'Patent and making part of .thesame.

indicated by the line :t :t in tigs. 2 and 4, which latter figure is aplan with the feed-boxes and upper covers removed Figure 5 is aninverted plan of the'revolving bed,

which carries the knives; and

Figure 6, a sect-ion through the revolving bed, taken as indicated bythe line z z in fig. 4.'

Similar letters of reference indicate colresponding parts.

- My invention consists-ln a rotary shingle-machine, in which the knivesare carried by a bed arranged to travel around a vertical axis, andincludes various peculiarities of construction and combinations ofparts, to provide for varying the angles of cut,and otherwise perfectthe operation ot' themachine.

Referring to the' accompanying drawing- A represents a revolvinghorizontal bed, mounted on a vertical driving-shaft, B, and arranged torotate within an annular curb, u, carried' by the 'frame C ot themachine. v

D is a cross-tie, secured at its ends to the main frame, and serving tosupport the upper end of the shaft B, also formed with vertical sides orwings b, that, in conjunction with wings b', on'fast intermedi atecovers E, form opposite sides to feed-boxes li, in which the y,bolt-srequired to be worked up into shingles are placed, and through which,onto the revolving bed A below, they are fed or drop.

This bed A, the upper surface of which lies the thickness of a shingle,or more, below the bottom edges of the boxes F,.or lower surfaces of thecrosstie D and covers E, carries, on opposite sides of its axis, knivesG G', arranged to project obliquely up through it, and preferably shapedto form reverse sweeps ou their cutting-edges, and arched or curvedthroughout, resembling in their construction the section of acone.

These knives are so set, or the upper surface of the bed A- so formed,that in their action upon the bolts, they alternately cnt at reverseinclinations through the bolts relatively to the length of the latter,which are here, lby the arrangement of the boxes F, shown tooccupy aradial position to the dri ving-shaft.

. To eii'ect this, the upper surface of the bed A may he made shelvingin reverse directions in front of the knives, that is, made to dip fromthe hub toward the periphery in tiont of the one knife, and fromthe'periphery toward the hub in advance of the other, which gives areverse inclu-lation4 to the projectionv of the cutting-edges of theknives above the bed surface, so that the one knife makes its deepestcut in an outwardly direction, and whereby the bolts are worked up vasregards the taper ot' the shingles from opposite ends alternately,without any special feed-motion to alternate their angular position, butsimply as they drop or are forced through the boxes F.

Clearance openings d d for chips are made through the bed in rear ot theknives.

The shingles as cut pass out from under the knives.

.As it may be desirable to increase or diminish the inclination of thecut, for the purposeiof making shingles of different tapers, therevolving bed A is made up ot' adjustable sections H H', each sectionbeing adjustable relatively to the knife it operates iu'A concert with,by screws e e and e' e', to vary the depth or dip of their reverseinclinations on the upper surface of the bed.

The knives G G are also made capable, by means of screws f f and' slotsg y', of being set in or out from the lower surfaces oi' the bed.

I do not limitmyseif to one pair of knives, G G', or any particularnumber of feed-boxes F.

1f desired, the bed A may be arranged on a horizontal shaft, andthebolts be fed'or pressed up against the vertical bed in horizontaldirections, by any suitable means.

What is here claimed, and desired to be secured by Letters Patent, is-

The revolving bed A, constructed of adjustable sections ll l-I,substantially as shown and described.

CARL NORDELL. Witnesses:

FRED. Haynes, HENRY PALMER.

